SHIELDEDPHONEJACKS,SF-JACKS  SHORTFRAMEJACKS,MINIPHONEJACKS
JACKS AND PLUGS
?
FAX: 773 792-2129
* Please visit the product pages on our website for the most up-to-date product information
1/4" SHIELDED PHONE JACKS
CN12A
109
Shield is assembled as part of the jack; cover “snaps” into
place. Shield is designed for Hi Z circuits. Mounting is
TWO CONDUCTOR PART NUMBERS
through a 3/8" diameter hole in chassis/panel up to
.156" thick with hex nut and flat washer (supplied).
On special order, jacks with .21 inch inside diameter
bushing are available.
Part
Number
? CN11
? CN12A
Description
Uses Number 11 Littel-Jax ? jacks
Uses Number 12A Littel-Jax ? jacks
Jack
Schematic 1
I
III
SPECIFICATIONS
MATERIAL
? Special order only. Contact Switchcraft.
THREE CONDUCTOR PART NUMBERS
Cover and Shield: Copper alloy, nickel-plated.
Cable Entry Insulation: Thermoplastic.
? CN12B
? CN13B
Uses Number 12B Littel-Jax ? jacks
Uses Number 13B Littel-Jax ? jacks
IV
VII
1 See jack schematics on pages 79 and 80.
2 See Plug Section for mating information.
? Special order only. Contact Switchcraft.
SF-JAX ? SHORT FRAME JACKS
.141" MINIATURE
PHONE JACKS
Typical
Part Schematic Mating Mounting
No.  Cond. Number   Plug  MIL Type Contacts Rating In. (mm)
125
125V panels up
24B
25
? 53B
? 54A
? 54B
? 55
? C-55B
3 XII 267 -----
2 XIII 250 -----
3 VII 267 -----
2 XI 250 -----
3 XII 267 -----
2 XIII 250 -----
3 XV
482 JJ-095,
Fine
Silver
3A hole,
AC to .156
.375 (9.52)
mounts in
(3.96) thick
MINIATURE EXTENSION JACK,
PHONE JACK NUMBER 125 (EIA STANDARD)
Cable-mounted Tini-Extension Jax ? 2-conductor single open
circuit jack has built in cable clamp/sleeve terminal. Mates with
Tini-Plug ? phone plugs and other plugs with .141" diameter
fingers and compatible tip shape. Shielded housing/handle is
knurled for positive fingertip grip; solder lug terminals.
M641/14-1
Long spring design reliability with minimum behind-panel
Body and handle: Nickel-plated copper alloy.
Insulation: Rigid plastic.
Springs: Plated copper alloy.
depth. Series 50 same as Series 20, except solder lug
location requires more depth, but less panel space.
Number C55B has MIL type insulation and finish.
TINI-EXTENSION JAX JACK
SERIES 20
24B
SERIES 50
Typical
25
53B
Part
Jack
Mating
54A
54B
55
C55B
Number
125
Description
Extension Jack
Schematic
I
Plug
750
DIMENSIONS ARE FOR REFERENCE ONLY
Inch
(mm)
SWITCHCRAFT, INC. 5555 N. Elston Ave. ? Chicago, IL 60630
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